package com.leyou.item.mapper;

import com.leyou.common.mapper.BaseMapper;
import com.leyou.item.pojo.Brand;
import org.apache.ibatis.annotations.Insert;
import org.apache.ibatis.annotations.Param;
import org.apache.ibatis.annotations.Select;
import org.springframework.stereotype.Component;


import java.util.List;

@Component
public interface BrandMapper extends BaseMapper<Brand> {

    /**
     * 新增商品分类和品牌中间表数据
     * @param cid 商品分类id
     * @param bid 品牌id
     * @return
     */
    @Insert("INSERT INTO tb_category_brand (category_id, brand_id) VALUES (#{cid},#{bid})")
    int insertCategoryBrand(@Param("cid") Long cid,@Param("bid") Long bid);

    @Select("SELECT b.* FROM tb_category_brand cb INNER JOIN tb_brand b  ON b.id = cb.brand_id WHERE cb.category_id = #{cid}")
    List<Brand> queryByCategoryId(@Param("cid") Long cid);
}